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期刊信息
  • 主管单位:
  • 上海市教育委员会
  • 主办单位:
  • 上海理工大学
  • 主  编:
  • 庄松林
  • 地  址:
  • 上海市军工路516号
  • 邮政编码:
  • 200093
  • 联系电话:
  • 021-55277251
  • 电子邮件:
  • xbzrb@usst.edu.cn
  • 国际标准刊号:
  • 1007-6735
  • 国内统一刊号:
  • 31-1739/T
  • 邮发代号:
  • 4-401
  • 单  价:
  • 15.00
  • 定  价:
  • 90.00
许佳慧,周海东,吕叔锋,刘志勇.EK-PRB对Pb(II)污染土壤的修复效果研究[J].上海理工大学学报,2020,42(4):368-374,403.
EK-PRB对Pb(II)污染土壤的修复效果研究
Effect of EK-PRB on the remediation of Pb(II) contaminated soil
投稿时间:2019-06-18  
DOI:10.13255/j.cnki.jusst.20190618002
中文关键词:  重金属  电动修复  高岭土  可渗透性反应墙
英文关键词:heavy metal  electrokinetic remediation  kaolin  permeable reactive barrier
基金项目:国家自然科学基金资助项目(51279108);上海市自然科学基金资助项目(18ZR1426100);上海理工大学科技发展项目(2018KJFZ117)
作者单位E-mail
许佳慧 上海理工大学 环境与建筑学院上海 200093  
周海东 上海理工大学 环境与建筑学院上海 200093 zhouhaidong@usst.edu.cn 
吕叔锋 上海理工大学 环境与建筑学院上海 200093  
刘志勇 上海理工大学 环境与建筑学院上海 200093  
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中文摘要:
      通过一种可变换阵列式电极的电动-可渗透反应墙(EK-PRB)装置,以沸石+粉煤灰组合为PRB材料,研究了电压梯度和土壤含水率在EK-PRB修复Pb(II)污染土壤的过程中对于去除效果的影响。试验过程中,修复周期定为5 d,设置了不同的电压梯度(1.5,2.0,2.5 V/cm)和含水率(25%,30%,35%),进行了9组正交试验。结果表明,提高电压梯度、增大含水率对于Pb(II)去除效果均具有增强作用,由此得出了以沸石+粉煤灰作为PRB材料时,EK-PRB修复Pb(II)污染土壤的含水率和电压梯度最佳组合,即在电压梯度和含水率分别为2.5 V/cm和35%时,Pb(II)的修复效果最好,去除率最高达到了80.7%。证明了沸石和粉煤灰作为组合材料时,EK-PRB联合修复技术在处理Pb(II)污染高岭土时的可行性,可以为EK-PRB在PRB材料的改性和创新上的发展提供支持和依据。
英文摘要:
      By virtue of a device of electrokinetic (EK) with permeable reactive barrier (PRB) with swithchable array electrodes, the influences of voltage gradient and water content on the removing effects were studied when using a kind of soil heavy metal repairing device to remediate Pb(II)-contaminated kaolin, and using the combination of zeolite and fly ash as filling material. The repair period was set as 5 d. Different voltage gradients (1.5, 2.0, 2.5 V/cm) and water content (25%, 30%, 35%) were set and 9 orthogonal tests were conducted. The results show that both enhancing the voltage gradient and increasing water content have enhancement effect on removing Pb(II). It is concluded that when zeolite + fly ash is used as the PRB material, the optimal combination of water content and voltage gradient,in the EK-PRB remediation of Pb (II) contaminated soil is 2.5 V/cm and 35%. The removal rate reaches 80.7%. The feasibility of EK-PRB combined repair technology in the treatment of Pb(II) contaminated kaolin was proved when zeolite and fly ash were used as a composite material. The results provide the support and basis for the development of EK-PRB in the modification and innovation of PRB materials.
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